30206859984 has 160 divisors (see below), whose sum is σ = 104306816000. Its totient is φ = 8176277376.

The previous prime is 30206859983. The next prime is 30206860039. The reversal of 30206859984 is 48995860203.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 30206859984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30206859983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205414 + ... + 320325.

It is an arithmetic number, because the mean of its divisors is an integer number (651917600).

Almost surely, 2^30206859984 is an apocalyptic number.

It is an amenable number.

30206859984 is an abundant number, since it is smaller than the sum of its proper divisors (74099956016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30206859984 is a wasteful number, since it uses less digits than its factorization.

30206859984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525782 (or 525770 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 30206859984 in words is "thirty billion, two hundred six million, eight hundred fifty-nine thousand, nine hundred eighty-four".